{"title":"Spinel","description":"\u003cp\u003eOur current selection of natural spinel. Long mistaken for ruby in royal treasuries, spinel is prized today for its own brilliance and saturated color — from vivid red and hot pink to lavender and purple.\u003c\/p\u003e\u003cp\u003eEach stone is selected individually and disclosed in full, and rated stones carry an \u003ca href=\"\/pages\/otzera-50\"\u003eOtzera 50\u003c\/a\u003e score judged against their own species.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/spinel\"\u003e\u003cstrong\u003eRead our full spinel guide →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"red-spinel-otz-2026-01629","title":"1.63 ct Vivid Red Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eVivid red color with a subtle pink modifier and exceptional brightness make this 1.63 ct spinel immediately striking. Its oval mixed cut shows very little windowing or extinction, producing strong brilliance across the face. A cluster of eye-visible crystals through the table sits close to the body color and gives the stone distinctive natural character.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Spinel\u003cbr\u003eWeight: 1.63 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 8.01 × 6.08 × 4.07 mm\u003cbr\u003eColor: Vivid Red with subtle pink modifier\u003cbr\u003eClarity: Eye-visible crystal cluster through the table\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 93%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, disclosure record and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350452983,"sku":"OTZ-2026-01629","price":2450.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01629-d.jpg?v=1786964740"},{"product_id":"red-spinel-otz-2026-01643","title":"2.13 ct Natural Red Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA natural 2.13 ct red spinel with a deep red appearance and classic oval outline. Its substantial size and rich color give it straightforward collector appeal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Red Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 2.13 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 9.93 × 7.24 × 3.97 mm\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 27\/50 — Discovery\u003cbr\u003eFace-Up Performance: 55%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51138651291895,"sku":"OTZ-2026-01643","price":1225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01643-red-spinel-4.jpg?v=1789007958"},{"product_id":"red-spinel-otz-2026-01645","title":"0.79 ct Myanmar Red Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA compact natural red spinel from Myanmar (Burma) with strong color and lively face-up return. At 0.79 ct, its oval mixed cut balances brightness with a rich red appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Red Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 0.79 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 5.93 × 5.11 × 3.77 mm\u003cbr\u003eOrigin: Myanmar (Burma)\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51150481555703,"sku":"OTZ-2026-01645","price":1190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01645-red-spinel-1.jpg?v=1789159330"},{"product_id":"purple-spinel-otz-2026-01647","title":"1.28 ct Vietnamese Purple Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA clean natural purple spinel from Vietnam with a precise round brilliant cut and lively face-up appearance. At 1.28 ct, the stone combines excellent transparency with flashes of violet and pink, making clarity and cutting its strongest collector attributes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Purple Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 1.28 ct\u003cbr\u003eShape \/ Cut: Round Brilliant Cut\u003cbr\u003eMeasurements: 7.05–7.07 × 4.05 mm\u003cbr\u003eOrigin: Vietnam\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003eFace-Up Performance: 75%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51150481752311,"sku":"OTZ-2026-01647","price":930.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01647-purple-spinel-1.jpg?v=1789159147"},{"product_id":"purple-spinel-otz-2026-01651","title":"1.70 ct Natural Purple Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA natural purple spinel with a soft pinkish-purple appearance and a cushion modified brilliant cut. At 1.70 ct, the stone has a broad face-up presence with flashes of rose and violet that shift as it moves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Purple Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 1.70 ct\u003cbr\u003eShape \/ Cut: Cushion Modified Brilliant Cut\u003cbr\u003eMeasurements: 8.05 × 6.09 × 4.45 mm\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 29\/50 — Collectible\u003cbr\u003eFace-Up Performance: 70%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51150481785079,"sku":"OTZ-2026-01651","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01651-purple-spinel-1.jpg?v=1789159044"},{"product_id":"1-69-ct-natural-lavender-purple-spinel","title":"1.69 ct Natural Lavender-Purple Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA soft-toned natural spinel with a delicate lavender-pink appearance and a broad rectangular cushion outline. Its subdued color and open center give the stone a lighter, airier look than more saturated purple spinels, while the elongated cushion shape provides an attractive face-up spread.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Purple Spinel\u003cbr\u003eSpecies: Spinel\u003cbr\u003eWeight: 1.69 ct\u003cbr\u003eShape \/ Cut: Cushion Mixed Cut\u003cbr\u003eMeasurements: 8.13 × 5.95 × 3.68 mm\u003cbr\u003eColor: Lavender-Purple with Pink Undertones\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e24 — Discovery\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 60%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51218379276535,"sku":"OTZ-2026-01699","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01699-purple-spinel-1.png?v=1790377372"},{"product_id":"1-95-ct-burmese-pink-spinel-oval-mixed-cut","title":"1.95 ct Burmese Pink Spinel — Oval Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA natural pink spinel from Myanmar with a lively oval mixed cut and warm pink color. At 1.95 carats, it offers strong visual presence and attractive brilliance, with natural eye-visible crystals that give the stone individual character.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Pink Spinel\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Spinel\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.95 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.02 × 7.26 × 4.39 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Pink\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Transparent with eye-visible crystals\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Myanmar (Burma)\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 30\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 73%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is durable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221882011895,"sku":"OTZ-2026-01680","price":1395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01680-pink-spinel-1.jpg?v=1790462920"},{"product_id":"1-40-ct-natural-purple-spinel-gia-report","title":"1.40 ct Natural Purple Spinel — GIA Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA richly colored natural purple spinel with a precise round brilliant cut and concentrated violet-purple flashes. The stone is accompanied by a GIA report confirming natural spinel with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Natural Purple Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 1.40 ct\u003cbr\u003eShape \/ Cut: Round Brilliant Cut\u003cbr\u003eMeasurements: 7.12–7.17 × 4.26 mm\u003cbr\u003eOrigin: Vietnam\u003cbr\u003eColor: Purple\u003cbr\u003eTransparency: Transparent\u003cbr\u003eTreatment: No indications of heating\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003eFace-Up Performance: 68%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOrigin: Vietnam. GIA Spinel Report No. 2245074861 confirms the stone as natural spinel with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by GIA Spinel Report No. 2245074861, dated September 24, 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, geographic origin, laboratory documentation and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51236518002935,"sku":"OTZ-2026-01752","price":1795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01752-1.jpg?v=1790793416"},{"product_id":"1-46-ct-vietnamese-pink-spinel-gia-origin-report","title":"1.46 ct Vietnamese Pink Spinel — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA lively natural pink spinel from Vietnam with a bright elongated cushion outline and attractive rose-pink color. GIA documentation confirms Vietnamese origin and no indications of heating, adding meaningful provenance to this collector stone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Natural Pink Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 1.46 ct\u003cbr\u003eShape \/ Cut: Cushion Modified Brilliant\u003cbr\u003eMeasurements: 8.07 × 6.08 × 3.85 mm\u003cbr\u003eOrigin: Vietnam\u003cbr\u003eColor: Pink\u003cbr\u003eTransparency: Transparent\u003cbr\u003eTreatment: No indications of heating\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003eFace-Up Performance: 73%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGIA Spinel Origin Report 2245074849 identifies natural spinel, pink, of Vietnamese geographic origin, with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by GIA Spinel Origin Report No. 2245074849, dated September 21, 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, laboratory documentation, origin and treatment disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51236518035703,"sku":"OTZ-2026-01753","price":2995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01753-1.jpg?v=1790793436"},{"product_id":"4-84-ct-natural-purple-spinel-gia-report","title":"4.84 ct Natural Purple Spinel — GIA Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA substantial 4.84 ct natural purple spinel with strong saturated color and an elegant oval modified brilliant cut. Its nearly five-carat size gives the stone notable collector presence, while GIA documentation confirms natural spinel with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Natural Purple Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 4.84 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant\u003cbr\u003eMeasurements: 11.24 × 8.79 × 6.95 mm\u003cbr\u003eColor: Purple\u003cbr\u003eTransparency: Transparent\u003cbr\u003eClarity: Very minor crystals visible under magnification\u003cbr\u003eTreatment: No indications of heating\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 35\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by GIA Spinel Report No. 5242074857, dated September 25, 2026, identifying the stone as natural spinel with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, laboratory documentation and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51236518068471,"sku":"OTZ-2026-01757","price":4495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01757-1.jpg?v=1790793455"},{"product_id":"0-93-ct-burmese-red-spinel-gia-origin-report","title":"0.93 ct Burmese Red Spinel — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA vivid natural red spinel from Burma (Myanmar) with strong saturation and lively face-up return in an oval mixed cut. GIA documentation confirms Burmese origin and no indications of heating, adding meaningful collector interest to this sub-one-carat stone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Natural Red Spinel\u003cbr\u003eSpecies: Natural Spinel\u003cbr\u003eWeight: 0.93 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 6.10 × 5.13 × 4.17 mm\u003cbr\u003eOrigin: Burma (Myanmar)\u003cbr\u003eColor: Red\u003cbr\u003eTransparency: Transparent\u003cbr\u003eClarity: Loupe-visible crystals\u003cbr\u003eTreatment: No indications of heating\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGIA Spinel Origin Report No. 2245074866 identifies natural spinel of Burma (Myanmar) geographic origin with no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by GIA Spinel Origin Report No. 2245074866, dated September 25, 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, laboratory documentation, origin and treatment disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51236593565943,"sku":"OTZ-2026-01756","price":3995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01756-1.jpg?v=1790796825"},{"product_id":"3-53-ct-blue-spinel-oval-mixed-cut","title":"3.53 ct Blue Spinel — Oval Mixed Cut","description":"\u003ch2\u003eCollector’s Note\u003c\/h2\u003e\u003cp\u003eCool steel-blue color and an elongated oval shape give this natural spinel a distinctive elegance. Broad facets catch silvery reflections and flashes of blue as the viewing angle changes. At 3.53 ct and 12.5 mm long, it has a generous presence that would suit a statement pendant, a bespoke ring or a collection exploring the many shades of blue.\u003c\/p\u003e\u003ch2\u003eGemstone Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGemstone: Natural blue spinel\u003c\/li\u003e\n\u003cli\u003eSpecies: Spinel\u003c\/li\u003e\n\u003cli\u003eWeight: 3.53 ct\u003c\/li\u003e\n\u003cli\u003eShape \/ Cut: Oval Mixed Cut\u003c\/li\u003e\n\u003cli\u003eMeasurements: 12.5 x 7.7 x 4.4 mm\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003cli\u003eOtzera ID: OTZ-2026-01765\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOtzera 50\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e28\/50 — Collectible\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance Index: 55%\u003c\/p\u003e\u003ch2\u003eTreatment\u003c\/h2\u003e\u003cp\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\u003ch2\u003eCare\u003c\/h2\u003e\u003cp\u003eClean gently with lukewarm water, mild soap and a soft brush. Protect from hard knocks and sudden temperature changes.\u003c\/p\u003e\u003cp\u003ePhotographs show this individual gemstone. Color may vary with lighting and screen settings.\u003c\/p\u003e\u003ch2\u003eDigital Gem Passport\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/otzera.com\/pages\/passport\/otz-2026-01765\"\u003eView this gemstone’s Digital Gem Passport\u003c\/a\u003e for its permanent record and Otzera 50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51505266032887,"sku":"OTZ-2026-01765","price":1395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01765-1-4k.jpg?v=1793202595"}],"url":"https:\/\/otzera.com\/collections\/spinel.oembed","provider":"Otzera","version":"1.0","type":"link"}